US5468238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscopic laser instrument
Assignee: Ethicon Inc
•
Filing: 1993-06-11
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Granted: 1995-11-21
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Expires: 2013-06-11
Abstract
Abstract An endoscopic instrument having a diode laser at the distal end of the instrument for cutting and/or coagulating tissue during an endoscopic procedure.
Inventors
- 👤 Steven H. Mersch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:03
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B17/00; A61B17/00234
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
93 words
An endoscopic instrument that provides a spatially coherent beam for use in an endoscopic procedure, said instrument having a distal end to be positioned within a body cavity of a mammal, a proximal end for manipulating said instrument from outside a body of a mammal and an elongated shaft portion connecting said distal and proximal ends, a diode laser and a focussing means for providing said spatial coherent beam, disposed in the distal end of said shaft portion and means for supplying power to said laser at the distal end of the instrument.
Claim 2
Dependent Claim
93 words
An endoscopic instrument that provides a spatially coherent beam for use in an endoscopic procedure, said instrument having a distal end to be positioned within a body cavity of a mammal, a proximal end for manipulating said instrument from outside a body of a mammal and an elongated shaft portion connecting said distal and proximal ends, a diode laser and a focussing means for providing said spatial coherent beam, disposed in the distal end of said shaft portion and means for supplying power to said laser at the distal end of the instrument.
Claim 3
Dependent Claim
23 words
An endoscopic instrument according to claim 1 including means disposed in the distal end of the instrument for cooling said laser during use.
Claim 4
Dependent Claim
31 words
An endoscopic instrument according to claim 1 wherein the diode laser provides a laser beam for cutting tissue, said beam having a wavelength of from about 1300 nm to 1550 nm.
Claim 5
Dependent Claim
31 words
An endoscopic instrument according to claim 1 wherein the diode laser provides a laser beam for coagulating material, said beam having a wavelength of from about 670 nm to 1300 nm.
Claim 6
Dependent Claim
26 words
An endoscopic instrument according to claim 1 including means extending from the distal end of the instrument for indicating a focal point of a laser beam.
Claim 7
Dependent Claim
19 words
An endoscopic instrument according to claim 1 wherein the diode laser is low power and useful for diagnostic purposes.
Claim 8
Dependent Claim
111 words
An endoscopic instrument for cutting tissue and coagulating material during an endoscopic procedure, said instrument having a distal end to be positioned within a body cavity of a mammal, a proximal end for manipulating said instrument from outside a body of a mammal, an elongate shaft portion connecting said distal and proximal ends, a diode laser and a focussing lens disposed in the distal end of said shaft portion, means for supplying power to said laser at the distal end of the instrument, means disposed in said shaft portion for cooling said laser during use of the instrument; focussing means for providing said laser beam with spatial coherence and temporal coherence.
Claim 9
Dependent Claim
111 words
An endoscopic instrument for cutting tissue and coagulating material during an endoscopic procedure, said instrument having a distal end to be positioned within a body cavity of a mammal, a proximal end for manipulating said instrument from outside a body of a mammal, an elongate shaft portion connecting said distal and proximal ends, a diode laser and a focussing lens disposed in the distal end of said shaft portion, means for supplying power to said laser at the distal end of the instrument, means disposed in said shaft portion for cooling said laser during use of the instrument; focussing means for providing said laser beam with spatial coherence and temporal coherence.
Claim 10
Dependent Claim
53 words
An endoscopic instrument according to claim 7 wherein the diode laser produces a first laser beam having a wavelength of from 670 nm to 1300 nm to be used for coagulating material and a second laser beam having a wavelength of from 1300 nm to 1550 nm to be used for cutting tissue.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-11-20 | 1999-05-22 | 1999-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-20 | 2003-05-22 | 2003-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-20 | 2007-05-22 | 2007-11-21 | $7700.00 | Window Closed / Lapsed |